[]
• height: number
The watermark height.
• imageSrc: string
The watermark image src.
• page: string
The watermark page, support "all", "odd", \u201ceven\u201d, "1,3,4,7,8,9,".
• width: number
The watermark width.
• x: number
The watermark begin x position.
• y: number
The watermark begin y position.